physics: energy stores and transfers

thermal energy store

energy due to the random movement of particles in a substance

kinetic energy store

energy that moving objects have

gravitational potential energy store

anything in a gravitational field

elastic potential energy store

anything stretched

chemical energy store

anything that can release energy through a chemical reaction (e.g. food)

magnetic energy store

magnets that attract/ repel each other

electrostatic energy store

charges that attract/repel each other

nuclear energy store

atomic nuclei release energy in nuclear recations

mechanical work energy transfer

when a force moves something through a distance

electrical work energy transfer

when electric charge moves through a circuit

heating energy transfer

energy transferred from a hotter object to a colder object

radiation energy transfer

energy transferred by waves

kinetic energy equation

kinetic energy = 0.5 x mass x velocity squared

KE= 0.5mv^ 2

gravitational potential energy equation

change in gravitational potential energy = mass x gravitational field strength x change in vertical height

GPE = mgh

conservation of energy

energy can be stored, transferred between stores and dissipated, but it cant be created or destroyed